"I don't know what to expect, because obviously, I've never expected before, so I'm just really enjoying it," he told ET Canada a few days before he became a dad. "Neither one of us are anxious. We're just excited. We can't wait to know what it's like! We can't wait to meet this little guy."

Bublé acknowledged, however, that giving birth in Canada was "scary" for his wife, who hails from Argentina.

"She's in a country that's not her country. People are speaking a language that's not her first language, so I'm her whole family here," he said. "She's got a good support system."

As will their baby, although his parents have different ideas about what he'll grows up to be.

"She says he's going to be a tennis player, or he will be a football player," he said. But Bublé hopes he'll stay true to his Canadian roots. "He will play for the Vancouver Canucks [hockey team]. He will be the smallest power forward ever."